DTC P0650 (LUJ)
Diagnostic Instructions
DTC Descriptor
| DTC P0650 00: Malfunction Indicator Lamp (MIL)
Control Circuit |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
MIL Voltage Supply
|
P0650 00
|
P0650 00
|
-
|
-
|
MIL Control
|
P0650 00/MIL ON
|
P0650 00
|
P0650 00
|
-
|
|
| |
Circuit/System Description
The malfunction indicator lamp (MIL) is located on the
instrument panel cluster.
The MIL informs the driver that an emission system fault has
occurred and that the engine control system requires service. The
engine control module (ECM) monitors the MIL control circuit for
conditions that are incorrect for the commanded states of the
MIL.
Conditions for Running the DTC
| • |
DTCs P0601 00, P0604 00, P0605
00, P0606 00, P0607 00, and P2610 00 are not set. |
| • |
DTC P0650 00 runs continuously
when the ignition is ON. |
Conditions for Setting the DTC
| • |
The ECM detects that the
commanded state of the MIL driver and the actual state of the
control circuit do not match for more than 1 s. |
| • |
Should a short circuit to B+
or an open circuit occur on the MIL control circuit, the MIL must
be commanded ON for the DTC to set. A short circuit to ground on
the MIL control circuit can be detected immediately by the ECM in
the commanded OFF state. |
Action Taken When the DTC Sets
DTC P0650 00 is a Type B DTC, with no MIL request.
Conditions for Clearing the DTC
DTC P0650 00 is a Type B DTC, with no MIL request.
Reference Information
Schematic Reference
Connector End View Reference
Component Connector End Views
Electrical Information Reference
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
| 1. |
Ignition ON, the MIL should
turn ON and OFF when commanded with a scan tool. |
| 2. |
Operate the vehicle within the
conditions for running the DTC. You may also operate the vehicle
within the conditions you observed from the freeze frame/failure
records data. |
Circuit/System Testing
| 1. |
Ignition ON, verify that the
P16 Instrument Cluster warning indicators are illuminated.
|
| ⇒ |
If the P16 Instrument Cluster indicators are not
illuminated, test the ignition circuit terminal 32 for a short to
ground or an open/high resistance. If the circuit tests normal and
the ignition circuit fuse is open, replace the P16 Instrument
Cluster. |
| 2. |
Ignition OFF, disconnect
connector X1 at the K20 Engine Control Module. |
| 3. |
Ignition ON, verify that the
MIL is not illuminated. |
| ⇒ |
If the MIL is illuminated, inspect the MIL control
circuit terminal 52 X1 for a short to ground. If the circuit tests
normal, replace the P16 Instrument Cluster. |
| 4. |
Ignition ON, verify that the
MIL illuminates with a 3 A fused jumper between the K20 Engine
Control Module MIL control circuit terminal 52 X1 and
ground. |
| ⇒ |
If the MIL does not illuminate, test the MIL
control circuit terminal 52 X1 for a short to voltage or an
open/high resistance. If the circuit tests normal, replace the K20
Engine Control Module. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
